deserialize json base64 binary in .net using DataContractJsonSerializer

Question

hey, I am having a problem deserializing base64 json back into the .net object using wcf datacontract....

I have this to deserialize:

public static T FromJSON( this string json )
{
    using ( MemoryStream ms = new MemoryStream(ASCIIEncoding.Default.GetBytes(json)) )
    {
        DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));

        return (T)ser.ReadObject(ms);
    }
}

and...I have this in my model class...

[DataMember]
[Column(AutoSync = AutoSync.Always, DbType = "rowversion not null", CanBeNull = false, IsDbGenerated = true, IsVersion = true, UpdateCheck = UpdateCheck.Never)]
public byte[] timestamp { get; set; }

and...I'm passing the json back like so...

[{"id":"1","type":"H","date_issued":"\/Date(1286856000000)\/","date_ceu":"\/Date(1603166400000)\/","current":true,"timestamp":"AAAAAAAAD7M="}]

and for some reason it just refuses to simply put that base64 back into the byte[]...there must be some other way to get it to work...

also, fyi I'm using ASP.NET MVC and Html.Hidden(...) which serializes the binary into base64 to begin with....

thanks!

Answer 1

I solved the issue by using JSON.NET library instead...worked immediately.

http://json.codeplex.com/

List<..> result = JsonConvert.DeserializeObject<List<...>>( list );